Size : 500ml and 1000ml
From a fermentation engineering perspective, the most important innovations of the traditional Chinese ceramic pickling jar are its wide-body, narrow-mouth shape and its integrated water-seal rim. Long before modern plastics, silicone seals, and airlocks existed, this design provided an effective low-oxygen fermentation environment comparable to modern fermentation vessels. This is one reason why Chinese households have successfully produced fermented foods such as pickled vegetables, mustard greens, and beans for centuries.
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